Re: Indus GT drive

From: RayBryan (raycomp_at_visi.com)
Date: 2007-01-11 16:04:42

On Jan 10, 2007, at 10:02 PM, Cameron Kaiser wrote:

>>>> I've got an Indus GT floppy drive for C64...
>>
>>> One of the interesting things about this drive is that there's  
>>> another
>>> ROM that you can address as drive 1: to load utility programs  
>>> from.  A
>>> clever idea!
>>
>> That's a wild idea.  I didn't know they could do that.  Is the data
>> for "1:" entwined with the drive's normal firmware, or is it in, say,
>> a separate ROM that could be changed?
>
> Good question, never cracked the drive to find out. It's advertised  
> as a
> "ROM drive" in the manual, but that doesn't mean anything.

Eproms on the Indus board - 2) Intel2764 U17,U18 each rev1.1; 1 AMD  
am2764 U19 V1.1 - there is a static RAM SY2128L-4 (is that a 32K? -  
2x128 bits? that would be huge compared to 1541 with 2K of Ram)

The board has 2) SY6522s and a SYU6502 and bunch of logic ics.  There  
are 2 chips   4114R-001
																				-331
																				*B  c8618
Yellow plastic package 14 pin dip  - I do not recognize these
--Ray

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